Rotex Grit Help, Please....

darita said:
I just ordered an RO 150FEQ and I'm really confused as to the abrasives.  I'm used to 60, 80, 120, etc. grits.  How do I read the charts to order and what grit corresponds to what?  See...I am confused!

One thing to remember is that Festool RO sanders do need a 'break-in' period to ensure the brushes have settled and that the gears are meshing well. I do as do many RO users. I hang the new sander with the hose from a CT connected. I do not put any abrasive on the pad. Then I turn on the sander and lock it on, with the CT running. I set the sander speed to minimum and let it run for about 4 hours in Rotex mode and another 4 hours in Random Orbit mode.

After this break-in my sanders run very smoothly and last for years with daily use.

I make custom cabinets, using prefinished plywood nearly always for the cases, so that requires hardly any sanding. I also mill all of my hardwood from rough, so that is all freshly jointed and planed. Consequently I do very little sanding to remove anything but tool marks.

For years I depended on Rubin and Brilliant 2. However, before Granat came to North America I had used it on trips to Europe. Early in 2011 I received samples of Granat 100 and 120 grit in 150mm dia. I made extensive tests to be sure Granat did not cause troubles with staining the wood. Soon I became a Granat convert. During the 2011 Sander/Abrasives Special I bought so much Granat in all sizes and grits from 60 to 400.

Yes, Granat has a higher price per sheet or disc. However, it lasts so much longer than other products it costs less in the long run. Also, I do not need to change discs as often. I use far more P100 and P120 than the other grits.

When Rubin 2 was introduced I was asked to evaluate it and I also bought a box each of 100 and 120 in the 90mm dia size. I still had some 125mm dia Rubin left. I liked Rubin in its day, but I prefer Granat. I also believe Rubin 2 is an improvement over Rubin for the tasks I do, but for me Granat is even better than Rubin 2.
 
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